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Consider the following pairs regarding volcanic landforms:
1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.
2. Dike - An igneous mound with a dome-shaped upper surface and a level base.
3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.
4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.
How many pairs given above are correctly matched?
  • a)
    Only one pair
  • b)
    Only two pairs
  • c)
    Only three pairs
  • d)
    All four pairs
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Consider the following pairs regarding volcanic landforms:1. Sill - An...
1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks. This is correctly matched as sills are indeed horizontal intrusions.
2. Dike - An igneous mound with a dome-shaped upper surface and a level base. This is incorrectly matched. Dikes are vertical intrusions that cut across existing rock layers, not dome-shaped mounds.
3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline. This is incorrectly matched. Laccoliths are dome-shaped intrusions with a flat base, whereas phacoliths occupy the crest of an anticline or the bottom of a syncline.
4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust. This is correctly matched as batholiths are indeed large, deep-seated intrusive bodies.
Additional Information:
Dikes are typically vertical or steeply inclined sheets of rock that form when magma intrudes into pre-existing rock formations.
Laccoliths have a characteristic dome shape because the pressure of the magma causes the overlying strata to bulge upwards.
Phacoliths are typically found in the crests of anticlines or troughs of synclines, not as laccoliths.
Thus, only pairs 1 and 4 are correctly matched, making Option B the correct answer.
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Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer?
Question Description
Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer?.
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